Over at Associated Content, they have step-by-step directions on how to make your own collapsible fabric boxes. From the AC article:
Home storage is always in short supply. Often, people resort to using cardboard boxes or plastic cartons to store their items in closets, the attic, or cellars. But many items have to be stored out in the open. A great way of creating quick and attractive storage solutions is by crafting collapsible fabric boxes.
Rather than running out and buying some run-of-the-mill plastic storage bins, you can customize the look by picking out some fabric you may already have. If you are happy with the look of your creation, you can keep the storage box in the open rather than hiding it away in a closet.